Based on the principle of light - pen mode non - track three dimensional coordinate measuring technology , the paper uses psd as the photoelectric receiver and point light modulated by frequency to measure coordinates 本文通过对光笔式无导轨三坐标测量的研究、提出了以psd ( positionsensitivedetectors ,位置检测传感器)作为光电接收传感器,用高频调制光作为点光源,进行位置坐标测量的新思路,以提高整机的精度。
5 . otherwise , the applicability of cube comer array in the wide spectrum high power solid - state laser facility was researched as a relatively absolute part in this paper . through simulation , the action of cube corner array to reduce beam ' s focal spot size was testified visibly , and the smoothing effect of beam ' s modulation caused by cube corner array was proved primarily on the wide spectrum condition 另外,作为一部分相对独立的内容,本文对宽频带激光传输条件下采用角锥棱镜阵列抑制低频波前畸变的设想进行了探索性的研究,通过仿真模拟验证了角锥棱镜阵列具有抑制低频波前畸变、提高激光焦斑能量集中度的显著作用,并初步验证了宽频带激光传输条件下近场振幅高频调制的匀滑效应。
高频: high frequency调制: mingle; toss; lard; modulate ...高频调制器: high-frequency modulator高频调湿: high frequency conditioning高频调谐器: high-frequency tuner往高频调谐: tuning upward摆频调制: wobble modulation低频调制: low frequency modulation; low-frequency modulation低载频调制: low carrier modulation调频调制: frequency modulation调频调制,调频: frequency modulation调频调制盘: fm reticle; frequency modulation reticle分频调制: frequencydivision modulation光频调制: ofm optical frequency modulation交频调制: psm pitch shift modulation扩频调制: spread spectrum modulation ssm脉频调制: pfm pulse frequency modulation射频调制器: radio frequency modulator; radio-frequency modulator; rf modulator声频调制: audio modulation; buzzer modulation时频调制: time frequency modulation; time-frequency modulation视频调制: video modulation视频调制器: video modulator双音频调制: two-tone modulation像频调制: image modulation移频调制: frequency shift modulation; shift frequency modulation; shift-frequency modulation